I'm trying to think of uses for this, and it seems like it should enable something important, but I'm still coming up empty. Do you have something specific in mind?
Heh, it's kinda like that, isn't it. 
No, nothing specific in mind, just a case of "Hmmm, how hard would it be to..." and "Hmmm, wouldn't it be cool if...". 
Essentially it provides an additional option for a network interface instead of HTML or Adobe Flash, I have no idea if it's a useful option.
--Phil.